User:Sv1xv/Sandbox

Railway route diagrams

Reference

• Wikipedia:Route diagram template
• Wikipedia:Route diagram template/Catalog of pictograms

	Built on piles	Built on fill
Parallel to shore	"Wharf"	"Quay"
Extending out of the shore	"Pier"	"Jetty"

ТГИ1-50/5

Hazard symbols, ADR/RID, etc

NFPA 704 safety square
2 1 2 W

NFPA 704 safety square
1 2 2

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  ATEX certification mark
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  Explosive atmospheres
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Fictitious Byzantine heraldry

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Electromagnetic Spectrum chart

NATO LETTER BAND DESIGNATION						BROADCASTING BAND DESIGNATION
NEW NOMENCLATURE			OLD NOMENCLATURE
BAND	FREQUENCY (MHz)		BAND	FREQUENCY (MHz)
A	0 – 250		I	100 – 150		Band I 47 – 68 MHz (TV)
						Band II 87.5 – 108 MHz (FM)
			G	150 – 225		Band III 174 – 230 MHz (TV)
B	250 – 500		P	225 – 390
C	500 – 1 000		L	390 – 1 550		Band IV 470 – 582 MHz (TV)
						Band V 582 – 862 MHz (TV)
D	1 000 – 2 000
			S	1 550 – 3 900
E	2 000 – 3 000
F	3 000 – 4 000
G	4 000 – 6 000		C	3 900 – 6 200
H	6 000 – 8 000		X	6 200 – 10 900
I	8 000 – 10 000
J	10 000 – 20 000		Ku	10 900 – 20 000
K	20 000 – 40 000		Ka	20 000 – 36 000
L	40 000 – 60 000		Q	36 000 – 46 000
			V	46 000 – 56 000
M	60 000 – 100 000		W	56 000 – 100 000
US- MILITARY / SACLANT
N	100 000 – 200 000
O	100 000 – 200 000

References

Промрц ПРОМРЧ

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